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Finding the Fourth Proportional to 16.24, 22.36 and 13.94

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Solution

The fourth proportional to 16.24, 22.36 and 13.94 is: 19.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.24 : 22.36 = 13.94 : x
  2. Step 2: Convert to fraction form
    16.24/22.36 = 13.94/x
  3. Step 3: Cross multiply
    16.24x = 22.36 × 13.94
  4. Step 4: Simplify right side
    16.24x = 311.55
  5. Step 5: Solve for x
    x = 311.55/16.24
  6. Step 6: Final answer
    x = 19.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.